Photography and optical equipment – Projector or viewer – With provision for transparency magazine
Patent
1976-03-30
1977-10-04
Burke, Wallace R.
Photography and optical equipment
Projector or viewer
With provision for transparency magazine
D1603
Patent
active
D02459876
REFERENCES:
patent: D136711 (1943-11-01), Clark
patent: D214487 (1969-06-01), Reichl
patent: D238779 (1976-02-01), Robertson et al.
patent: 1867738 (1932-07-01), Fraser
Burke Wallace R.
Eastman Kodak Company
Holmes Paul R.
Kemper Catherine
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